Oxidation of an austenitic stainless steel pipe contaminated by petroleum products

• Autorzy: Palamarciuc I. , Galușcă D. G. , Agop M , Achiței D. , Manoliu Nuțescu Duduman C.
• Języki publikacji: EN

Abstrakty

EN

Purpose:The experimental researches of this paper were carried out in order to investigate the characteristics of the oxide layers obtained on the internal and external surfaces of an austenitic stainless steel pipe. Design/methodology/approach: The surfaces of an austenitic stainless steel pipe were investigated by Scanning Electron Microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) analysis. Also the microindentation hardness was measured, on the both surfaces and between them, in order to detect and verify the improvement of the mechanical properties. Findings: The external surface did not present any corrosion results but the internal surface of the analysed pipe was contaminated by sulphur during the transportation of petroleum products. In spite of this fact it was found that the mechanical properties of such a surface can be improved by air oxidation Researches limitations/implications: It was found that oxidation at lower temperatures (300°C) resulted in formation of harder coatings. For comparison and better interpretation this paper presents the results of the analysis and measurements performed before and after the oxidation and cleaning, demonstrating the effectiveness of this simple method of reconditioning. Originality/value: By experimental investigations of the physical, chemical and mechanical properties of the oxide layers, obtained on J92603 austenitic stainless steel by thermal oxidation, we demonstrated the principled technological possibility of obtaining hardening thermal oxide layers on corroded pipes’ surface.

Słowa kluczowe

EN

austenitic stainless steel; corrosion in petroleum products; oxide layer; surface hardening

PL

stal austenityczna nierdzewna; korozja w produktach naftowych; warstwa tlenkowa; hartowanie powierzchniowe

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2014
• Tom: Vol. 62, nr 2
• Strony: 63--68
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Palamarciuc I.

• Gheorghe Asachi Technical University of Iasi, 700050, Romania

autor

Galușcă D. G.

• Gheorghe Asachi Technical University of Iasi, 700050, Romania

autor

Agop M

• Gheorghe Asachi Technical University of Iasi, 700050, Romania

autor

Achiței D.

• Gheorghe Asachi Technical University of Iasi, 700050, Romania

autor

Manoliu Nuțescu Duduman C.

• Gheorghe Asachi Technical University of Iasi, 700050, Romania

Bibliografia

• [1] Proceedings of the NATO Advanced Research Workshop on Corrosion Protection of Pipelines Transporting Hydrocarbons, 26-28 April 2010, Biskra, Algeria.
• [2] Ya.M. Kolotyrkin, E.A. Ulyanin, Refining austenitic stainless steels, Introduction to Metals and Thermal treatment 5 (1981) 2-9.
• [3] R. Langton, Aircraft fuel systems, Wiltshire, 2009.
• [4] K.W. Krishnan, P.K. Gupte, Failures of metals in sulphur and sulphur bearing media, Jamshedpur, 1953.
• [5] I.V. Rodionov, Investigation of properties complex of the 12X18H9T steel surface, hardened by thermal oxidation), Proceedings of the Science and International XI Practical Conferences “Key aspects of scientific activity”, 2013, 16.